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| Low Dose MSCT Three-Dimensional Standard Measurement Technology in the Protection Value of Lung Biopsy |
| ZHANG Kong-yuan, LI Xian-jun |
| The People's Hopital of Weifang City, Weifang 261041 China |
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Abstract Objective To explore the application of low-dose CT-guided electroanatomic PV in lung puncture biopsy of puncture technique to reduce effective dose value. Methods Select 100 cases in need of line lung puncture andrandomly divide them into two groups with 50 cases as experiment group using low dose CT positioning technology and three dimensional marked measuring technology line lung puncture biopsy, while the controlled group using General CT positioning and existing General puncture technology. Records their times of puncture and positioning CT scan and calculate the received effective dose. Comparison was made between the two groups in t test. Results Experiment group's puncture is (1.26±0.53) times, CT positioning scan, (3.28±0.57) times. patients of received total effective dose is (1.27±0.32) mSv; control group puncture time is (4.44±1.82) times, CT positioning scan time is 6.24±1.82, patients' total effective dose received is (14.05±4.26) mSv; In comparison of experimental and control groups, the difference in puncture time is statistically significant (t=11.87, P < 0.05), the difference of CT localization scanning times is statistically significant (t=11.64, P < 0.05), the differenceof the total effective dose is statistically significant (t=21.16, P < 0.05). Conclusion Electroanatomic puncture technique, may improve the accuracy of puncture andreduce the times of puncture in a successful biopsy and the times of CT positioning technology can greatly reduce the total dose received by the patients.
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Received: 14 July 2014
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